UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000011556
Receipt number R000013520
Scientific Title Comparative Study of Early Efficacy of Once-Daily Dosing between Silodosin 4mg and Tamsulosin 0.2mg for Voiding Symptoms Associated with Benign Prostatic Hyperplasia
Date of disclosure of the study information 2013/08/26
Last modified on 2015/05/14 19:00:08

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Basic information

Public title

Comparative Study of Early Efficacy of Once-Daily Dosing between Silodosin 4mg and Tamsulosin 0.2mg for Voiding Symptoms Associated with Benign Prostatic Hyperplasia

Acronym

Comparative Study of Early Efficacy of Once-Daily Dosing between Silodosin 4mg and Tamsulosin 0.2mg for Voiding Symptoms Associated with Benign Prostatic Hyperplasia

Scientific Title

Comparative Study of Early Efficacy of Once-Daily Dosing between Silodosin 4mg and Tamsulosin 0.2mg for Voiding Symptoms Associated with Benign Prostatic Hyperplasia

Scientific Title:Acronym

Comparative Study of Early Efficacy of Once-Daily Dosing between Silodosin 4mg and Tamsulosin 0.2mg for Voiding Symptoms Associated with Benign Prostatic Hyperplasia

Region

Japan


Condition

Condition

Benign Prostatic Hyperplasia

Classification by specialty

Urology

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

This study is intended for elderly patients aged 65 years or older with moderate or severe voiding symptoms associated with benign prostatic hyperplasia. The subjects will be randomized to receive silodosin 4 mg or tamsulosin 0.2 mg once daily after breakfast for 4 weeks. Efficacy in early stages after administration and safety will be compared between the 2 groups.

Basic objectives2

Safety,Efficacy

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

IPSS voiding symptom score

Key secondary outcomes

(1) Efficacy;
IPSS total score and subscores
QOL score
OABSS
Urodynamic parameters
(2) Safety;
Blood pressure
Adverse events and adverse drug reactions


Base

Study type

Interventional


Study design

Basic design

Parallel

Randomization

Randomized

Randomization unit


Blinding

Open -no one is blinded

Control

Active

Stratification


Dynamic allocation


Institution consideration


Blocking


Concealment

Central registration


Intervention

No. of arms

2

Purpose of intervention

Treatment

Type of intervention

Medicine

Interventions/Control_1

Silodosin 4 mg, once daily after breakfast

Interventions/Control_2

Tamsulosin 0.2 mg, once daily after breakfast

Interventions/Control_3


Interventions/Control_4


Interventions/Control_5


Interventions/Control_6


Interventions/Control_7


Interventions/Control_8


Interventions/Control_9


Interventions/Control_10



Eligibility

Age-lower limit

65 years-old <=

Age-upper limit


Not applicable

Gender

Male

Key inclusion criteria

(1)Subject must have urinary symptoms associated with benign prostatic hyperplasia.
(2)Subject must give written informed consent.
(3)Subject must satisfy the following conditions during screening conducted at the start of the treatment period (Day 0):
* the total IPSS voiding symptom score is 8 or more,
* the QOL score is 2 or more,
* prostate volume is 20 mL or more,
* maximum urinary flow rate (Qmax) is 15 mL/sec or less, and
* residual urine volume is less than 100 mL.
(4)Subject must not use prohibited concomitant drugs except at least 2 weeks before the start of the treatment period (Day 0), or the subject must be able to undergo a drug washout for at least 2 weeks before the start of the treatment period.
(5)Subject must be an outpatient who can fill in the questionnaire.
(6)Subject must be 65 years or older at the time of signing the informed consent.

Key exclusion criteria

(1)Subject is contraindicated to silodosin or tamsulosin according to the respective package insert.
(2)Subject has received prostatic resection.
(3)Subject has received radiotherapy to the pelvic region.
(4)Subject has received hyperthermia or thermotherapy for prostatic hypertrophy.
(5)Subject has or is suspected to have prostate cancer.
(6)Subject has neurogenic overactive bladder, bladder neck contracture, urethral stricture, bladder stones, large bladder diverticulum, active urinary tract infection requiring treatment, or other complications that may affect urination.
(7)Subject performs self-catheterization.
(8)Subject has taken any of the following drugs within 12 months before the start of treatment period (Day 0):
* silodosin or tamsulosin,
* 5alpha-reductase inhibitors, or
* antiandrogen drugs.
(9)Subject has clinically important cardiovascular disturbances.
(10)Subject has clinically important hepatorenal diseases.
(11)Subject has a history of severe drug hypersensitivity.
(12)Subject is scheduled to have cataract surgery in the study period.
(13)Subject has or is suspected to have a complication of dementia.
(14)Subject is considered inappropriate for participating in the study by the subinvestigator.

Target sample size

60


Research contact person

Name of lead principal investigator

1st name
Middle name
Last name Masami Matsushita

Organization

Matsushita Urology Clinic

Division name

Director

Zip code


Address

459 Minamitada Usui-no-tsubo, Kaibara-cho, Tanba-shi, Hyogo

TEL

0795-73-0266

Email

kzkk77731@leto.eonet.ne.jp


Public contact

Name of contact person

1st name
Middle name
Last name Orie Watanabe

Organization

Sogo Rinsho M&eacute;d&eacute;fi Co., Ltd

Division name

Business Promotion Department

Zip code


Address

3-2-7 Nishi-shinjuku, Shinjuku-ku, Tokyo

TEL

03-6901-6079

Homepage URL


Email

watanabe.orie@sogo-medefi.jp


Sponsor or person

Institute

Matsushita Urology Clinic

Institute

Department

Personal name



Funding Source

Organization

KISSEI PHARMACEUTICAL CO.,LTD.

Organization

Division

Category of Funding Organization

Profit organization

Nationality of Funding Organization

Japan


Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization


Address


Tel


Email



Secondary IDs

Secondary IDs

NO

Study ID_1


Org. issuing International ID_1


Study ID_2


Org. issuing International ID_2


IND to MHLW



Institutions

Institutions



Other administrative information

Date of disclosure of the study information

2013 Year 08 Month 26 Day


Related information

URL releasing protocol


Publication of results

Unpublished


Result

URL related to results and publications


Number of participants that the trial has enrolled


Results


Results date posted


Results Delayed


Results Delay Reason


Date of the first journal publication of results


Baseline Characteristics


Participant flow


Adverse events


Outcome measures


Plan to share IPD


IPD sharing Plan description



Progress

Recruitment status

Completed

Date of protocol fixation

2013 Year 07 Month 19 Day

Date of IRB


Anticipated trial start date

2013 Year 08 Month 26 Day

Last follow-up date

2015 Year 01 Month 31 Day

Date of closure to data entry


Date trial data considered complete


Date analysis concluded



Other

Other related information



Management information

Registered date

2013 Year 08 Month 22 Day

Last modified on

2015 Year 05 Month 14 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000013520


Research Plan
Registered date File name

Research case data specifications
Registered date File name

Research case data
Registered date File name